TET TEU 
THA THA 
pogon, a beard. Linn. 3, Or. 2. Nat. Or. Gramineae. 
A curious hardy annual species, of common culture, 
villosus .... Apetal . . 7> Grass. Barbary . .1818 
Tktbapoma, Turcz. From tetra, four, and poma, a 
cover; capsule four-valved. Luin. 15, Nat. Or. 
Cruciferas. We are not acquainted with this plant, 
but we presume it is of little value — T. barbarece- 
JbliOm. 
Tbtraptkris, Cavanilles. From tetra, four, and 
pteron, a wing ; the carpels are each four- winged. 
Linn. 10, Or. 3, Nat. Or. Malpighiacea. Interesting 
plants, seldom seen in blossom. For culture and 
propagation, see Afa/pigAia. Synonymes: \. Triop- 
ieris bnxifolia. 2. citrifolia. 
buKifOliS, 1 . . Yellow . S. Ev. S. St. Domin. . 1822 
citrifolia, 2 . . Yellow . S. Ev. S. Cayenne . 1818 
TErRAQOKTROus, having four angles or sides. 
Tetraskpalous, having four sepals. 
Tbtbathkca, Smith. From tetra, four, and theke, a 
cell; alluding to the anthers being four-celled. 
Linn. 8, Or. 1, Nat. Or. Tremandracea. A genus 
of very pretty under-shrubs, rather diffic^t to 
cultivate. A mixture of loam, peat, and sand, in 
equal parts, seems to suit them best ; and cuttings 
of the young wood root in sand, under a glass. 
ericsefOlia ... Rose . . 7, G. Ev. S. N. HoIL . 1820 
vlandulosa . . . Purple . 7, G. Ev. S. V. D. L. . 1822 
luncea .... Purple . 7, G. Ev. S. N. HolL . 1803 
pilOsa . . . .Purple . 7, 0. Ev. S. V. D. L. .1823 
rubioIdSs . . . Purple . 7, G Ev. S. N. Holl. . 1825 
thymifOlia . . . Purple . 7. G. Ev. S. N. HolL . 1824 
TkC-crTCm, Linn. Named after Teucer, son of Sca- 
mander, and father-in-law of Dardanus, king of 
Troy. Linn. 14, Or. 1, Nat. Or. /.aiiate. Interest- 
ing plants, of very easy CHlture. The perennial 
herbaceous kinds succeed well in common garden 
soil ; and are readily increased by division and by 
seeds. Most of the shrubby kinds require the pro- 
tection of a frame or greenhouse in winter ; they 
are easily increased by young cuttings. The seeds 
of the annual species only require to be sown in the 
open border in spring. Synonymes : 1. Scutellaria 
cretica. 2. T. orchiieum. 3. T. latifolium. 4. T. 
supinum. 5. T. capitatum, jlavum. 6. T. aureum. 
7. T. pseudo-hystopus. 
abutiloIdSs . . . Yellow . 4, 0. Ev. S. Madeira . 1777 
anirustlssiiiiuiii . . Purple . 6, H. Ev. S. Spain . . 1818 
Ardulnl, 1 . . . Yellow . 7, F. Ev. 8. Candia . 1823 
aaiatlcQm . . . Pink . . ft F. Ev. S. . 1777 
betAnIcum . . . Lilac . . 7, G. Ev. S. Madeira . 1775 
bicdlOr, 2 . . . Yel. red . 7, F. Her. P. Chile . .1826 
BAtrVa . . . . Red . . 8, H. A. 8. Eur. .1633 
breviffllluni ... Pink . .6, H. Ev. 8. Crete . . 1824 
campanulatum . . Blue . . 7, H. Her. P. Levant . 1728 
canadensS . . . Purple . ft H. Her. P. N. Amer. 1768 
canum .... Purple . F. Ev. 8. Armenia . 1836 
Cbam^rl^ . . . Purple . 7, H. Her. P. England . 
crAUcum '. . . . Purple . 7. F. Ev. 8. Crete . . 1824 
cubensc .... Purple . 5, 8. B. Cuba . . 1733 
flavum, 3. . . . YMlow . ft F. Ev. 8. 8. Eur. . 1640 
frlitlcens .... Violet . ft F. Ev. 8. Spain . . 1648 
gnaphaloldis . . Purple . ft F. Ev. 8. Spain . . 1816 
neterophyllum . . Purple . 6, F. Ev. 8. Madeira . 1759 
iiyrcAnlcum . . . Purple . 9, H. Her. P. Peraia . . 1763 
inflatum .... Red . . 9, S. Her. P. Jamaica . 17:8 
ltevii;atum ... G. Her. P. . 1832 
LaxmannI . . . Varieg. . 7. H. Her. P. Siberia . 1800 
lucMum .... Purple . ft H. Her. P. 8. Eur. . 1730 
lusitAnlcum . . . Purple . ft H. Her. P. Portugal . 1822 
Marum .... Pa. pur. . 8, F. Ev. 8. Spain . . 1640 
massili§Dsa . . . Purple . H. Her. P. France . 1731 
montanum, 4 . . tVhite . F. Ev. 8. 8. Eur. . 1710 
multifldrum . . . Li. red . 8, H. Her. P. Spain . . 1731 
■issolianum . . . Purple . 7, F. Her. P. Spain . . 1752 
orientals .... Blue . . TS H. Ev. 8. Levant . 1752 
PolIOm . . . .Pale . . ft H. Ev. S. 8. Eur. . 1562 
angustifOlIum, 5 . Purple . 7. F. Ev. 8. Spain . . 1731 
flavescens, 6 . . Yellow . 6, F. Ev. 8. S. Eur. . 1731 
vulgarC, 7. • .White . 6, F. Ev. 8. 8. Eur. . 1820 
PseudO-Chamspitys Purple . 6, F. Ev. 8. S. Eur. . 1820 
Pseudb-Scorodonia . Yellow . 7> H. Her. P. N. Africa 1818 
pumilum .... Purple . 7, F. Ev. 8. Spain . . 1816 
pycnophvllum . . Purple . 7, H. Her. P. Spain . .1816 
pyrenaicum . . . Pa. wht. ft H. Her. P. Pyrenees . 1731 
reglum .... Purple . 7, F. Ev. 8. Spain . . 1699 
resupinStum . . . Pa yeL . 7, H. A. Barbary . 1801 
saxAtile . . . .Pa. yel. . 7, H. Ev. Tr.Valeutia . 1820 
svordioidis . . . Purple . ft H. Her. P. England . 
Scortilum .... Purple . 7> H. Aq. P. England . 
Scorodonia . . . Yellow . 7, H. Her. P. Britain . 
subspinosum . . . Purple . F. Ev. 8. Minorca . 1816 
thymifbllum . . . Re'.ldish . 8, H. Ev. S. Spain . . 1816 
trifidum .... Purple . 7, G. Ev. 8. C. G. H. . 1791 
virginicum . . . Blue . . H. Her. P. N. Amer. 1768 
Thalamus, that part of the flower which rises from 
below the ovarium, and sometimes supports the 
outer envelopes as well as the stamens in all the 
Thalmmifloroe. 
Thalia, Linn. In honour of J. Thalius, a German 
physician, died in 1588. Linn. 1, Or. 1, Nat. Or. 
Marantaceae. Interesting plants, thriving well in 
a rich, light soil ; and increased by division. T. 
dealbata will withstand the severity of our winters, 
if planted about two feet beneath the surface of the 
water. 
dealbaU . . . Blue . . 7, F. Aq. P. 8. Carolina 1 79l 
geniculaU . . . Blue . . ft 8. Her. P. W. Ind. . 1823 
Thalictrum, Linn. From thallo, to grow green ; in 
allusion to the bright colour of the young shoots. 
Linn. 13, Or. 6, Nat. Or. Ranunculacece. The greater 
part of the species are hardy herbaceous plants, 
adapted for the back of flower borders ; any light 
soil suits them, and they are readily increased by 
division. Synonymes: }. Anemone thalictroides. 2. 
T. tugosum. 3. T. minus. 4. T. corynellum. 5. T. 
revolutum. 6. T. ambiguum. 7. T. vaginatum. 8. 
T. styloideum. 9. T. spedosum. 10. T. diffiisum. 
11. T. acuminatum. 12. T. discolor. 13. T minus. 
acutilObam . . Pa. yel. . 6, H. Her. P. Siberia . . 1820 
alpinOm . . . Wht. yel. 6, H. Her. P. Britain . . 
anemonoIdSs, 1 . . 4, H. Tw. P. N. Amer. . 1768 
fieri pUnO . . . 4, H. Tw. P. N. Amer. . 1768 
angustifbllum . . Pa. yel. . ft H. Her. P. Germany . 1793 
appendiculAtum . H. Her. P. Russia . . 1832 
aquilegifdllum . Li. pur. . 6, H. Her. P. Austria. . 1731 
atropurpurium Dk. pur. . ft H. Her. P. Au.stria . . 1731 
formbsum . . Purple . 6, H. Her. P. 8. Eur. . . 1800 
cal&bricum . . Yellow . 7. H. Her. P. Sicily . . 1800 
carolinisnum, 2 . White. . 6, H. Her. P. N. Amer. . 1818 
ChelidOnll . . . Purplish . 6, H. Her. P. Nepal . . 1823 
cinireum . . . Yellow . 6, H. Her. P. . 1810 
clavatum . . . White. . 6. H. Her. P. N. Amer. . 1720 
coUinum, 3 . . Pa. yel. . 6. H. Her. P. Europe . . 1800 
concinnum . . Wht. grn. 6, H. Her. P. 
contbrtum . . . White. . 6, H. Her. P. Siberia . . 1796 
CornutI, 4 . . . Wht. yeL 5, H. Her. P. N. Amer. . 1806 
revolutum, 5 . Lgt. yel. 6, H. Her. P. N. Amer. . 1806 
crenatum . . . Yellow . 7, H. Her. P. Europe . .1800 
cynapifollum . . Pur. yel. 6, H. Her. P. Siberia . . 1823 
dioicum . . .Li. yeL . 6, H. Her. P. N. Amer. . 1759 
divaricatum . . Yelsh. . 6, H Her. P. Europe . . 1819 
divirgens . . . Yellow . 6, H. Her. P. Siberia . . 1819 
elatum .... Li. yeL . ft H. Her. P. Hungary . 1794 
amblghfim, 6 . Pa. yel. . 6, H. Her. P. Switzerl. . 1819 
exaltatum ... H. Her. P. Siberia . . 1832 
flavum .... Orange . 6, H. Her. P. Britain . . 
vaginatum, 7 • Yellow . 6, H. Her. P. Siberia . . 1810 
flexubsum . . . Yellow . 6, H. Her. P. Germany . 1820 
fdetldiim, 8 . . Wht. yeL 6, H. Her. P. France . . 1640 
foliolbsum . . . Pur. yeL . 6, H. Her. P. Nepal . . 1819 
galioldis . . . Yellow . 6, H. Her. P. Alsace . . 1816 
glaucescins . . Grn. yel. . 6, H. Her. P. Russia . .1818 
glaucum. 9 . . . Yellow . 6, H. Her. P. Spain . . 1798 
laserpitiifbliam . Yellow . 6, H. Her. P. Europe . . 1810 
lucldum, 10 . . Yellow . 6, H. Her. P. Spain . . 1739 
majus .... Grn. yeL . 6, H. Her. P. England . 
medium, 11 . . Grn. yeL . 7, H. Her. P. Hungary . 1739 
mexicanum . . Green . . ft H. Her. P. Mexico . . 1826 
microcarpbn . . H. Her. P. Russia . . 1832 
minus .... Pa. yeL . 6, H. Her. P. Britain . . 
nigricans . . . Grn. yel. . 6, H. Her. P. Austria . 1798 
nutans, 12 . . . Gm. yel. . 6, H. Her. P. Switzerl. . 1819 
oligospermum . . Pur. yeL . 6, H. Her. P. Siberia . . 1820 
petaloideum . . Wht. yel. 6. H. Her. P. Dauria . .1799 
polygamum . . Wht. pur. b, H. Her. P. Pennsylv. . 1818 
puliescens . . . Pa. yel. . 6, H. Her. P. Switzerl. . 1819 
purpurascens . . Li. pur. . 6. H. Her. P. N. Amer. . 1699 
ranuncullnum . . Pa. yel. . ft H. Her. P. N. Amer. . 1606 
rbpens .... H. Her. P. Ruasia . . 1832 
rosmarinifbllilm . Pur. yel. . 6, H. Her. P. 8. Eur. . .1816 
rugb-sum . . .WhfcyeL 7, H. Her. P. N. Amer. . 1774 
dlscfilbr, 13 . . Yellow . 6. H. Her. P. N. Amer. . 1810 
saxatlla, 14 . . Wht. red. 6,K. Her. P. Europe . . 1819 
Schwelggirl . . Yellow . 6, H. Her. P. 
sibirlcum . . . Li. yeL . 6, H. Her. P. Siberia . . 1775 
simplex . . . .Li. yel. . 5, H. Her. P. Sweden . 1778 
squarrbsCm . . Yellow . ft H. Her. P. Siberia . . 1806 
stipulacbum . . Wht. yel. 6, H. Her. P. Europe . . 1820 
trigynum ... Grn. yel. ft H. Her. P. Dahuria . 1818 
tuberosum . . . White. . 6, H. Tw. P. Spain . .1713 
Thallus, that part which bears the fructification in 
Li&hens. 
ThamnidIum, Link. From thamnos, a twig; the 
appearance of the plant when under the microscope. 
